They are also more costly to purchase up front often twice the cost of a gas fired pool heater and because they utilize a mix of technologies they are similar to an air conditioner working in reverse to add.
Add a heater to an inground pool.
Add a solar heater to your pool step 1.
Heat pumps pull in air from the outside and by use of coils and other instruments heats the air itself which then heats the pool water flowing through the pump.
Keep in mind that a gas heater will need a larger btu output because of efficiency.
Natural gas usually costs between 0 80 and 1 10 per therm.
Though gas heaters are popular and cheaper upfront they are not considered as energy efficient as a heat pump.
The best way to try to simplify pool heater sizing is this calculation.
Choose a solar heating kit the main considerations when choosing a solar heating kit are the size of your pool.
If the answer is yes a pool heater is the way to go.
This is not to be confused with a gas heater which burns gas or propane to create heat which is then transferred to the pool water passing through the heater.
Install the solar.
If using a 400 000 btu unit it will be 4 therms per hour.
A natural gas pool heater is likely to use about 1 therm per hour for a 100 000 btu unit.
Pool gallons x 8 33 x desired temperature rise 24 hours required btus.
Position the solar pool heater where you set up your solar heater for your swimming pool determines how.